<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">
  <style>
    body {
      width: 300px;
      padding: 10px;
    }
    button {
      margin: 5px;
      padding: 5px 10px;
    }
  </style>
</head>
<body>
  <h2>网页二维码生成器</h2>
  <script src="popup.js"></script>
</body>
</html> 